/Engine/Plugins/Editor/UVEditor/Source/UVEditorTools/Public/UVEditorSeamTool.h
Check if, given the current scene state, a new instance of this builder's Tool can be created
true if a new Tool instance can be created
virtual bool CanBuildTool ( const [FToolBuilderState](API\Runtime\InteractiveToolsFramework\FToolBuilderState) & SceneState ) const